01804naa a2200241 a 450000100080000000500110000800800410001902000180006010000200007824500850009826000090018330000120019250001410020452010260034565000180137165000160138965000160140565000110142165000150143265000220144765300180146977300750148716441961993-08-26       1990    bl uuuu     u00u1 u    #d  a978.131.051.01 aBELLOTTI, A. C.  aA review of control strategies for four important cassava pests in the Americas.  c1990  ap.58-65  aProceedings of the Workshop on the Global Status of and Prospects for Integrated Pest Management of Root and Tuber Crops in the Tropics.  aCassava is attacked by a wide range of arthropod pests; approximately 200 species have been recorded throughout the cassava growing regions of the world. Cassava is a New World crop, its geographic origin being the lowland tropics of the Americas. As might be expected, the largest complex of pests associated with the crop is found in the Neotropics. Although most are occasional feeders or minor pests, causing little or no economic loss, several of them must be classified as major pests, warranting the implementation of effective control practicies. Extensive and systematic research on cassava pests is relatively recent. The CIAT Cassava Entomology program was initiated in 1972 and most other national and international research programs in cassava entomology were initiated after that date. Many initial studies attempted to define the pest complex by addressing the question of which pests were causing the greatest yield losses and therefore required extensive efforts in the development of control strategies.  aMononychellus  aOligonychus  aTetranychus  aÁcaro  aCochonilha  aManihot Esculenta  aErinnyse ello  tIbadan, Nigeria: International Institute of Tropical Agriculture, 1990